Question: Which skerry has the smallest focal height that is white?
Paraphrase: What skerry has the smallest focal height that is white?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q216851 . ?ent wdt:P2923 ?obj . ?ent wdt:P462 wd:Q23444} ORDER BY ASC(?obj)LIMIT 5 
Answer: Svingrundet, Farfarsgrund, Brödstycket, Skrapan lighthouse